Origin
Southern and central Africa
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Color
Red, Brown, Black
Black, Blue, Yellow, Green
Streak
Brownish, Red
Grey, Greenish, Brown
For which Rashi?
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Planet
-
-
Element of Planets
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Energy
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How to Wear?
Finger
-
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Ring Metal
-
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Deities
-
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Not to wear with
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Powers
-
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Birthstone
Planetary
-
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Talisman
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Tenacity
Brittle
Brittle
Solubility
-
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Durability
-
-
Specific Gravity
5.85-6.153.28-3.44
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Splintery
Cleavage
Fair in four directions forming octahedrons
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
3.5-45.0-6.0
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Adamantine
Vitreous, Silky
Pleochroism
visible
X = blue
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
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Refractive Index
2.8491.680-1.698
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
monoclinic
Birefringence
-99990.005-0.008
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Poor
Good
Reproductive
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Digestive
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Psychology
Vitality
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Clear Thinking